| The milling shoes include flat-bottom miII shoe,concave–bottom mill shoe,tapered bottom miII shoe,pilot miII shoe,high effective cone.milI shoe.The flat-bottom grind shoe is a normal tool for grinding downhole smalI catchas and repairing the fish top.The concave bottom is used to grind downhole small objects and other unstable fallen objects.The pilot mill shoe is used to grind the fallen objects which are with internal hole and shaking downhole.The Tapered grind(mill)shoe is used to repair and maintain smalI deformed location and clean walI sundries. |
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